[gdal-dev] simplifying height contours

Vincent Mora vincent.mora at oslandia.com
Wed Apr 16 03:46:45 PDT 2014


Hi,

I have a vector file with height contours and I need to simplify the 
lines (too many points).

Isolevel lines must not intersect, so simplifying the vector directly is 
a bit tedious (involves collision detection of lines to constrain 
simplification).

If I had the DEM, I could reduce the resolution and use 
gdal_countour...but I don't.

So what about generating the DEM from the height contours? Do you think 
it fits in gdal somewhere ? Has someone the same kind of use-case ?

V.




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